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. 2022 Sep 2;2(6):620–628. doi: 10.1021/acsmeasuresciau.2c00050

Table 3. Reference Values and Expanded Uncertainties (k = 2, 95% CI) for NCAP-1.

substance molar concentration (μmol L–1) mass fraction (mg g–1) mass concentration (mg mL–1)
SARS-CoV-2 nucleocapsid protein 10.0 ± 1.9 0.50 ± 0.09 0.50 ± 0.09